Fdaq Service

2013-04-16 08:32:41 +02:00
parent 527b26f399
commit d76b1d89a7
2 changed files with 279 additions and 0 deletions
@@ -0,0 +1,136 @@
+/**
+ * 
+ * Copyright 2013 Paul Scherrer Institute. All rights reserved.
+ * 
+ * This code is free software: you can redistribute it and/or modify it under
+ * the terms of the GNU Lesser General Public License as published by the Free
+ * Software Foundation, either version 3 of the License, or (at your option) any
+ * later version.
+ * 
+ * This code is distributed in the hope that it will be useful, but without any
+ * warranty; without even the implied warranty of merchantability or fitness for
+ * a particular purpose. See the GNU Lesser General Public License for more
+ * details.
+ * 
+ * You should have received a copy of the GNU Lesser General Public License
+ * along with this code. If not, see <http://www.gnu.org/licenses/>.
+ * 
+ */
+package ch.psi.fdaq;
+
+import java.io.BufferedWriter;
+import java.io.DataInputStream;
+import java.io.DataOutputStream;
+import java.io.File;
+import java.io.FileWriter;
+import java.io.IOException;
+import java.io.PrintWriter;
+import java.net.Socket;
+import java.nio.ByteBuffer;
+import java.nio.ByteOrder;
+import java.util.logging.Level;
+import java.util.logging.Logger;
+
+/**
+ * Fdaq service
+ * 
+ */
+public class FdaqService {
+
+	private static final Logger logger = Logger.getLogger(FdaqService.class.getName());
+
+	public final static String APP_HOME = "ch.psi.fdaq.home";
+	private volatile boolean stopAcquisition = false;
+
+	/**
+	 * Start the acquisition
+	 */
+	public void startAcquisition(final File file) {
+		Thread t = new Thread(new Runnable() {
+			
+			@Override
+			public void run() {
+				try {
+					FdaqConfiguration config = FdaqConfiguration.getInstance();
+					stopAcquisition = false;
+					Socket echoSocket = new Socket(config.getHostname(), config.getPort());
+					DataOutputStream out = new DataOutputStream(echoSocket.getOutputStream());
+					DataInputStream in = new DataInputStream(echoSocket.getInputStream());
+
+					int nMessages = config.getNelements();
+
+					// struct fdaqbloc_in {int fnum;int nsample;};
+					ByteBuffer bytebuffer = ByteBuffer.allocate(2 * 4); // 2 times
+																		// Integers
+					bytebuffer.order(ByteOrder.LITTLE_ENDIAN);
+					bytebuffer.putInt(26);
+					bytebuffer.putInt(nMessages);
+					out.write(bytebuffer.array());
+					out.flush();
+
+					
+					// open file and write
+					try(PrintWriter writer = new PrintWriter(new BufferedWriter(new FileWriter(file)))){
+						
+						writer.println("# a" + "\t" + "b1" + "\t" + "b2" + "\t" + "c1" + "\t" + "c2" + "\t" + "d");
+					
+						for (int t = 0; t < nMessages; t++) {
+							// struct fdaqbloc_out {int trigindex;int adc1reg;int
+							// adc2reg;int encoder;};
+							ByteBuffer buffer = ByteBuffer.allocate(4 * 4); // 4 times
+																			// Integers
+							buffer.order(ByteOrder.LITTLE_ENDIAN);
+							int r = in.read(buffer.array());
+							if (r == -1) {
+								break;
+							}
+	
+							int a = buffer.getInt();
+							int b = buffer.getInt();
+							int b1 = b & 0xffff;
+							int b2 = (b >> 16) & 0xffff;
+							int c = buffer.getInt();
+							int c1 = c & 0xffff;
+							int c2 = (c >> 16) & 0xffff;
+							int d = buffer.getInt();
+	
+//							System.out.println(a + " " + b1 + " " + b2 + " " + c1 + " " + c2 + " " + d);
+							writer.println(a + "\t" + b1 + "\t" + b2 + "\t" + c1 + "\t" + c2 + "\t" + d);
+						}
+					}
+
+					out.close();
+					in.close();
+					echoSocket.close();
+				} catch (IOException e) {
+					if(!stopAcquisition){ // Ignore potential exceptions if stop acquisition was triggered before
+						logger.log(Level.SEVERE, "", e);
+					}
+				}
+			}
+		});
+		t.start();
+	}
+
+	public void stopAcquistion() {
+		try {
+			stopAcquisition=true;
+			FdaqConfiguration c = FdaqConfiguration.getInstance();
+			Socket echoSocket = new Socket(c.getHostname(), c.getKillPort());
+			DataOutputStream out = new DataOutputStream(echoSocket.getOutputStream());
+
+			ByteBuffer bytebuffer = ByteBuffer.allocate(1 * 4); // 2 times
+																// Integers
+			bytebuffer.order(ByteOrder.LITTLE_ENDIAN);
+			bytebuffer.putInt(666);
+			out.write(bytebuffer.array());
+			out.flush();
+
+			out.close();
+			echoSocket.close();
+		} catch (IOException e) {
+			logger.log(Level.SEVERE, "", e);
+		}
+	}
+
+}